/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package de.drv.dsrv.spoc.web.listener;

import java.net.URL;

import javax.annotation.Resource;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.apache.commons.logging.LogFactory;
import org.apache.log4j.PropertyConfigurator;

/**
 * Listener zum Initialisieren der Commons Logging Factory mit dem Logger von
 * log4j.
 */
public final class LoggingContextListener implements ServletContextListener {

	@Resource(name = "url/SPoC_log4j.propertiesRef")
	private URL log4jResource;

	/**
	 * @see ServletContextListener#contextDestroyed(ServletContextEvent)
	 */
	@Override
	public void contextDestroyed(final ServletContextEvent event) {
	}

	/**
	 * @see ServletContextListener#contextInitialized(ServletContextEvent)
	 */
	@Override
	public void contextInitialized(final ServletContextEvent event) {

		PropertyConfigurator.configure(this.log4jResource);

		LogFactory.getFactory().setAttribute("org.apache.commons.logging.Log",
				"org.apache.commons.logging.impl.Log4JLogger");

	}
}
